lx-scan/node_modules/LXWebGui/lib/routes/open.js

License eXtension to find 5-tuples of all installed packages: name, version, project home page, license (e. g. Apache v2, BSD) and required notice. It includes a GUI to edit information for each package and to enter information if necessary.

var lxu = require("lxutils"); 
var fs = require("fs"); 
var pa = require("path");

var errorrender = function(req,res,old_json_file) { 
	var newpath = req.app.locals.jfiles[old_json_file]; 
	var errortext = ["The indicated file could not be read."];
	if(newpath==="") { 
		res.render("index",{title:"LX Viewer",jfile:old_json_file,caller:"/",err:errortext});
	} else { 
		lxu.jRender(newpath,"index",{title:"LX Viewer",jfile:old_json_file,caller:"/",err:errortext},res); 
	}	
};

module.exports.get = function(req,res) { 
	var newpath = req.query.path; 
	var old_json_file = req.query.jfile; 
	var settings = req.app.locals.lxusettings; 

	fs.readFile(newpath,function(err,data) { 
		if(err) { 
			// Render the old file if something went wrong
			errorrender(req,res,old_json_file); 
			return; 
		}

		var newfilename = lxu.make_random_filename(settings.tmpdir,newpath,"json");
		fs.writeFile(newfilename,data,function(err) { 
			if(err) { 
				// If we get to this point there's nothing we can reasonably do; a missing or bad file name has been entered into
				// the file table
				throw err; 
				return; 
			}
			req.app.locals.jfiles[lxu.hash(newfilename)] = newfilename; 
			try {
				lxu.jRender(newfilename,"index",{title:"LX Viewer",jfile:lxu.hash(newfilename),caller:"/",path:newpath},res); 
			} catch (e) { 
				fs.unlink(newfilename); 
				errorrender(req,res,old_json_file); 
			}
		}); 
	});
};